Derry Township (Westmoreland County) is a township in Westmoreland County, Pennsylvania, home to about 13,472 people across 96 square miles. Its ZIP codes are 15620, 15627, 15661, 15671 and 15779, and parts of 15650, 15670 and 15717 are in Derry Township (Westmoreland County) too.
Homes sold for a median of $164 per square foot across 5 ZIP codes in the three months ending August 2026, and 1 of 5 were seller’s markets.
All in Derry Township (Westmoreland County)
All in Derry Township (Westmoreland County)
All in Derry Township (Westmoreland County)
All in Derry Township (Westmoreland County)
All in Derry Township (Westmoreland County)
Mostly Unity; part is in Derry Township (Westmoreland County)
Mostly Salem Township (Westmoreland County); part is in Derry Township (Westmoreland County)
Mostly Blairsville; part is in Derry Township (Westmoreland County)
Each card is that ZIP code’s whole market, including any part outside Derry Township (Westmoreland County). Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Derry Township (Westmoreland County)’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Pittsburgh International Airport (PIT)49 miles away |
|---|---|
| Closer regional airport | Arnold Palmer Regional Airport (LBE)8 miles away |
| Nearest city of 250,000+ | Pittsburgh, PA35 miles away |
| Nearest city of 1 million+ | Philadelphia, PA222 miles away |
Straight-line distances from the center of Derry Township (Westmoreland County); driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Derry Township (Westmoreland County) had 13,631 residents in the 2020 census, down 7% since 2000.
It’s the 185th largest of 2,568 towns in Pennsylvania by population.
Westmoreland County grew from 160,175 residents in 1900 to 354,663 in 2020.
Westmoreland County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 19°F. About 43.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Loyalhanna Lake, PA weather station (9 miles away).
124,843 jobs at 8,428 businesses in Westmoreland County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
30 doctors and other health care providers list an office in Derry Township (Westmoreland County)’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 3 |
|---|---|
| Dentists | 3 |
| Nurse practitioners and physician assistants | 2 |
| Mental health providers | 16 |
| Physical and occupational therapists | 1 |
| Chiropractors | 5 |
| Pharmacies | 1 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (22 nearby)
Grocery stores
Pharmacies (3 nearby)
Libraries (2 nearby)
Museums
Theaters and performance venues
Counts are within about 6.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Derry Area SD. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Grandview El SchDerry | K–5 | 753 | Public | 2.4 mi |
| Derry Area MSDerry | 6–8 | 440 | Public | 2.6 mi |
| Derry Area SHSDerry | 9–12 | 598 | Public | 2.7 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Grace Bible AcademyBradenville | Pre-K–12 | 70 | Baptist | 4.2 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Unity, Latrobe, Burrell, Blairsville, Derry Borough, Salem Township (Westmoreland County), Black Lick, Mount Pleasant Township (Westmoreland County), West Wheatfield, Loyalhanna, Center Township (Indiana County), New Alexandria and Cook.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.